Double hook



FIG. 1 is a perspective view of a double hook showing a new design;

FIG. 2 is a top view of the double hook of FIG. 1;

FIG. 3 is a front view of the double hook of FIG. 1;

FIG. 4 is a cross-sectional view along line 4-4 in FIG. 3;

FIG. 5 is a side view of the double hook of FIG. 1;

FIG. 6 is a rear view of the double hook of FIG. 1; and,

FIG. 7 is a bottom view of the double hook of FIG. 1.

The broken line showing of a support bracket is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM What is claimed is the ornamental design for a double hook, as shown and described. 